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Proof step 21 from proof validstatfield-addclass-same (previous step)

sk = fs ', validval(str, fis[sk], fs .type, st), sk ∈ statfields(fs .class), tdname∃(str, fs .class), type∃(str, fs .type), is_fskey(sk), sk ∈ fis ⊦ fs .class = `java.lang.Object' .class, validstatfield(str, sk, addclass(fs .class, fis, st))

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 20:
validval(str, fis[fs '], fs .type, st), fs ' ∈ statfields(fs .class), tdname∃(str, fs .class), type∃(str, fs .type), fs ' ∈ fis ⊦ fs .class = `java.lang.Object' .class, validstatfield(str, fs ', addclass(fs .class, fis, st))

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ is_fskey(fs ')])]]